yamaha 2021 YZ85


The YZ85 is a legend in the youth motocross scene. It’s the bike that inspired many of today’s top professional racers and helped them on their path to MX glory. And with its punchy performance, the YZ85 is the dirt bike that can turn young riders’ dreams into reality.

Victory. Never given, always earned.

The 85cc liquid-cooled 2-stroke engine comes with a Yamaha Power Valve System (YPVS) that delivers a wide spread of explosive power – giving genuine advantage over the competition.

And with fully adjustable forks, wave-type front and rear discs and adaptable ergonomics, the YZ85 has the technology to launch riders all the way to the top. Plus its sharp styling and factory-inspired graphics show the world you’re serious about winning.

At a glance

  •     85cc liquid cooled 2-stroke engine with YPVS
  •     Plastic resin reed valve and an expansion chamber
  •     Fully adjustable 36-mm KYB® upside down front forks
  •     Wave discs and brake hoses
  •     4-position adjustable tapered aluminium handlebars
  •     Aluminium swingarm for easy chain adjustment
  •     Link-type Monocross rear suspension
  •     Sharp styling and factory inspired graphics
  •     Light and efficient large core radiator
  •     Impact resistant fork guards
  •     Close ratio 6-speed transmission


Engine Type

Single cylinder, 2-stroke, liquid-cooled, reed valve

Displacement CC


Bore X Stroke

47.5 mm x 47.8 mm

Compression Ratio

8.1 : 1

Oil Capacity


Fuel Tank Capacity




Transmission Type

Constant Mesh, 6-speed

Dimensions LxWxH

1,903 mm x 758 mm x 1,156 mm


1,286 mm

Seat Height

904 mm

Ground Clearance

393 mm

Kerb Weight

73 kg

Tyre Size Front

70/100-19 42M

Tyre Size Rear

90/100-16 52M

Brakes Type Front

Single Disc, 220 mm

Brakes Type Rear

Single Disc, 190 mm